The Start Scene ()block was an Event block and a Stack block. This block was similar to Broadcast (), because they both fired a user-driven event to start an action. The broadcast block was available for all sprites, while its alternative, Switch to Scene () which was only available for the stage. They have both been replaced by Switch Backdrop to () which is available for all sprites and the stage.

Workaround

Due to the fact that the Switch to Scene () block worked identically to the broadcast block, the block could simply be replaced with the other. However, Switch to Scene () was only available for the stage so one had to have:

On the sprite:

broadcast [switch to scene meadow v]

On the stage:

when I receive [switch to scene meadow v]
switch backdrop to [meadow v]